rs150259097
Variant summary
Our verdict is Benign. The variant received -13 ACMG points: 0P and 13B. BP4_StrongBP6_Very_StrongBP7
The NM_000251.3(MSH2):c.2802G>A(p.Thr934Thr) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000944 in 1,610,700 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). Synonymous variant affecting the same amino acid position (i.e. T934T) has been classified as Likely benign.
Frequency
Consequence
NM_000251.3 synonymous
Scores
Clinical Significance
Conservation
Publications
- Lynch syndromeInheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: G2P, ClinGen, Orphanet
- Lynch syndrome 1Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), Genomics England PanelApp, Ambry Genetics
- Muir-Torre syndromeInheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Genomics England PanelApp, Orphanet, G2P
- mismatch repair cancer syndrome 1Inheritance: AR Classification: DEFINITIVE, SUPPORTIVE Submitted by: ClinGen, Orphanet
- mismatch repair cancer syndrome 2Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), G2P
- ovarian cancerInheritance: AD Classification: STRONG Submitted by: Genomics England PanelApp
- malignant pancreatic neoplasmInheritance: AD Classification: MODERATE Submitted by: Genomics England PanelApp
- prostate cancerInheritance: AD Classification: MODERATE Submitted by: Ambry Genetics
- rhabdomyosarcomaInheritance: AR Classification: MODERATE Submitted by: Genomics England PanelApp
- breast cancerInheritance: AD Classification: NO_KNOWN Submitted by: Ambry Genetics
- hereditary breast carcinomaInheritance: AD Classification: NO_KNOWN Submitted by: ClinGen
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ACMG classification
Our verdict: Benign. The variant received -13 ACMG points.
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|
| MSH2 | NM_000251.3 | c.2802G>A | p.Thr934Thr | synonymous_variant | Exon 16 of 16 | ENST00000233146.7 | NP_000242.1 |
Ensembl
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
|---|---|---|---|---|---|---|---|---|---|---|
| MSH2 | ENST00000233146.7 | c.2802G>A | p.Thr934Thr | synonymous_variant | Exon 16 of 16 | 1 | NM_000251.3 | ENSP00000233146.2 |
Frequencies
GnomAD3 genomes AF: 0.0000920 AC: 14AN: 152166Hom.: 0 Cov.: 33 show subpopulations
GnomAD2 exomes AF: 0.0000970 AC: 24AN: 247508 AF XY: 0.0000671 show subpopulations
GnomAD4 exome AF: 0.0000946 AC: 138AN: 1458416Hom.: 0 Cov.: 31 AF XY: 0.0000855 AC XY: 62AN XY: 725378 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.0000919 AC: 14AN: 152284Hom.: 0 Cov.: 33 AF XY: 0.0000537 AC XY: 4AN XY: 74454 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
not provided Benign:5
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The MSH2 p.Thr934= variant was not identified in the literature. The variant was identified in dbSNP (ID: rs150259097) as "With Uncertain significance allele", ClinVar (classified as benign by Invitae; as likely benign by Ambry Genetics, Counsyl and two other submitters; as uncertain significance by two submitters), UMD-LSDB (1x as unclassified variant ). The variant was identified in control databases in 25 of 273988 chromosomes at a frequency of 0.00009 increasing the likelihood this could be a low frequency benign variant (Genome Aggregation Database Feb 27, 2017). The variant was observed in the following populations: African in 4 of 23584 chromosomes (freq: 0.0002), Latino in 3 of 34170 chromosomes (freq: 0.00009), European in 10 of 125066 chromosomes (freq: 0.00008), Finnish in 7 of 25714 chromosomes (freq: 0.0003), and South Asian in 1 of 30256 chromosomes (freq: 0.00003), while the variant was not observed in the Other, Ashkenazi Jewish, and East Asian, populations. The p.Thr934= variant is not expected to have clinical significance because it does not result in a change of amino acid and is not located in a known consensus splice site. In addition, in silico or computational prediction software programs (SpliceSiteFinder, MaxEntScan, NNSPLICE, GeneSplicer) do not predict a difference in splicing. In summary, based on the above information the clinical significance of this variant cannot be determined with certainty at this time although we would lean towards a more benign role for this variant. This variant is classified as likely benign. -
Hereditary cancer-predisposing syndrome Benign:4
BP4, BP7 c.2802G>A located in exon 16 of the MSH2 gene is predicted to result in no amino acid change, p.(Thr934=)(BP7).This variant is found in 26/264956 with a filtering allele frequency of 0.0006% in the gnomAD v2.1.1 database (non-cancer data set). Computational tools for this variant suggests no significant impact on (BP4). This variant has been reported in ClinVar (11x as likely benign, 4x as benign) and in LOVD (3x uncertain significance) databases. In addition, the variant has been also reported in InSiGHT database 2013/09/05 v1.9 as Class 3:uncertain (“Insufficient evidence”). Based on currently available information, the variant c.2802G>A is classified as a likely benign variant according to ACMG guidelines. -
This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -
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Lynch syndrome 1 Benign:3
This variant is considered benign. This variant is a silent/synonymous amino acid change and it is not expected to impact splicing. -
This submission and the accompanying classification are no longer maintained by the submitter. For more information on current observations and classification, please contact variantquestions@myriad.com. -
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not specified Benign:1
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MSH2-related disorder Benign:1
This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -
Lynch syndrome Benign:1
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Hereditary nonpolyposis colorectal neoplasms Benign:1
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at